Hot-plate.



S. A. SGHEWCZIK.

HOT PLATE.

APPLICATION FILED NOV. 21, 1912.

1,067,683. v Patented Ju1y15, 1913.

Aiorzzey.

EOLUMBIA PLANQGRAPH C0.. WASHINGTON, D. C.

ATENE @FEIQE SILVIO ANTON SCHEWCZIK, OF VIENNA, AUSTRIA-HUNGARY.

HOT-PLATE.

T 0 @ZZ @rho/lt it may concer/L:

Be it known that I, SILVIO ANTON Sounwczrn, subject of the Emperor of Austria-Hungary, residing at Vienna, Austria- Hungary, have invented certain new and useful Improvements in Hot-Plates, of which the following is a specification.

This invention relates to improvements in steam heated hot plates used for drying fabrics and for like purposes. It is well known that such hot plates have been provided with a plurality of openings to enable circulation of air, the provision of these openings, however', in former construct-ions having necessitated the use of numerous joints which have rendered manufacture expensive and are always liable to leak. In order to avoid these defects it has been suggested to cast steam conduits integrallj7 with the perforated hot plate.

The object of the present invention is to facilitate the manufacture of hot plates without the necessity for casting the steam conduits integrally with the plate, while avoiding the numerous steam joints employed in the constructions first above referred to.

According to t-he present invention the hot plate has rows of perforations and an independent zigzag tubular steam conduitis mounted on the plate and in close contact therewith, the conduit being intermediate of the rows of perforations.

In the accompanying drawings Figure l is an inverted plan of part of one form of steam heated hot plate according to the invention. Fig. 2 is a section on the line I-I of Fig. l. Fig. 3 is a section on the line II-II of Fig, l.

In carrying the invention into eifect accoi-ding to one form as illustrated in the drawings, a flat sheet metal plate a, is provided with upturned edges or flanges b, adapted to form a rim, so that the plate together with its rim forms a box or casing open on one side. As the plate is usually employed in a horizontal position the casing is open on the underside. The plate a, is punched, or otherwise provided with rows of perforations c. Tubular sections (Z, preferably of triangular cross-section, are mounted on the plate a, intermediate of the rows of perforations c, each section cl, having a flat side in close contact with the plate a. The sections (Z, are suitably connected at their adjacent ends alternately,

Specification of Letters Patent.

Application filed November 21, 1912.

Patented July15, 1913.

Serial No. 732,791.

for instance, by means of double elbows y, so that the sections together form a continuous zigzag steam conduit. The double elbows, which may be castings, are connected to the sections by hard soldering or welding. The extremities of the zigzag conduit may be provided with any suitable steam connections, for instance, each may be connected to a pipe g', by means of a closing cap g, the pipe in one case acting as a steam inlet, and in the other case acting as an outlet for exhaust steam or water of condensation. The drawings only show one extremity. The sections CZ, in the form shown in the drawings are of triangular cross-section, and this facilitates fastening of the sections to the platev a, for instance, wedge shaped clamps 7L, are inserted between the rim b, and the adjacent sections, and also betweenthe sections themselves. The wedge shaped clamps L, are suitably connected at their' apexes to the plate a, for instance, by riveting as indicated at it. The wedge shaped clamps 7L, also divide the spaces between the adjacent sections into compartments, each of the compartments forming a heating chamber for air passing through it and thence through the perforations c. The clamps k, also strengthen the walls of the sections (l, and enable light sections to be employed.

I claim l. A hot plate for drying fabrics and for like purposes, comprising a plate having rows of perforations, an independent zigzag tubular steam conduit having' a flat wall which fits against said plate, the conduit being intermediate of the rows of perforations, and means located at intervals for fastening the conduit to the plate, substantially as and for the purpose hereinbefore set forth.

2. A hot plate for drying fabrics and for like purposes, comprising a plate having rows of perforat-ions, tubular conduit sections mounted on said plate intermediate of the rows of perforations, the conduit having a flat wall which lits against the plate, means for connecting said sections at their adjacent ends alternately, for the purpose of forming a continuous zig-zag steam conduit, and means located at intervals for fastening the conduit to the plate, substantially as hereinbefore set forth.

3. A hot plate for drying fabrics and for like purposes, comprising a plate, having rows of perforations, tubular sections mounted on said plate intermediate of the rows of perforations, double elbows for connecting adjacent ends of the said sections alternately, for the purpose of forming a continuous Zig-zag steam conduit, and means located at intervals for securing the tubular sections to the plate, substantially as hereinbefcre set forth.

L A hot plate for drying fabrics and for like purposes, comprising a plate, having rows of perforatious, tubular sections mounted on said plate intermediate of the rows of perforations, said tubular sections being of triangular cross-section and each having a flat side in close contact with the aforesaid plate, and means for connecting the adjacent ends of said sections alternately, for the purpose of forming a continuous Zig- Zag steam conduit, and means located at intervals for securing the tubular sections to the plate.

5. A hot plate for drying fabrics and for like purposes, comprising a perforated plate, tubular sections mounted on said plate, said tubular sections being of triangular cross-section and each having a flat side ,ses

in close contact with the aforesaid plate, and wedge shape clamps arranged between adjacent sections for Aclamping said sections to the aforesaid plate and for dividing the space between the adjacent sections into compartments, substantially as and for the purpose hereinbefore set forth.

6. A hot plate for drying fabrics and for like purposes, comprising ay Hat perforated plate, having a. rim, tubular sections mounted on said pla-te and within said rims, said tubular sections being of triangular cross-Y section and each having a flat side in close contact with the plate, wedge shaped clamps between the rim and the sections, and wedge shaped clamps between the sections, for the purpose of clamping said sections to the aforesaid plate, substantially as and for the purpose hereinbefore set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

SILVIO ANTON SCHEWCZIK.

Witnesses:

AUGUST FUGGER, ADA M. BERGER.

Copies vof this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, ID. G. 

